Source follower CMOS input buffer

Details Source follower CMOS input buffer Source follower CMOS input buffer

1985-10-17

1987-10-06

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307270, 307585, H03K 19094, H03K 19092, H03K 17687, H03K 1710

Patent

active

046985263

ABSTRACT:
An input buffer has input and output inverters. An n-channel transistor is coupled as a source follower between the inverters. The buffer receives a TTL input and provides a CMOS output. The source follower transistor has a large channel width and provides substantial pullup. The output inverter stage can be made larger. A p-channel transistor in parallel with the n-channel source follower transistor permits the internal node to reach a full Vcc level. Another n-channel transistor driven by the input signal permits the node to reach ground.

REFERENCES:
patent: 4176289 (1979-11-01), Leach et al.
patent: 4217502 (1980-08-01), Suzuki et al.
patent: 4365172 (1982-12-01), Prater
patent: 4498021 (1985-02-01), Uya
patent: 4549101 (1985-10-01), Sood
patent: 4558234 (1985-12-01), Suzuki et al.
Bansal, "Inverting/Non-Inverting On-Chip Line Driver", IBM Tech. Discl. Bull., vol. 26, No. 8, pp. 4139-4140, Jan. 1984.

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